You breathe air made up of atoms, eat foods composed of atoms and drink water made up of atoms—with a body that itself consists of atoms. The objects you see around you are actually nothing more than photons striking the electrons belonging to the atoms in your eyes.

And what about the things you touch and feel? Those too—hard and soft, rough and smooth, cold or hot—consist of the atoms in your skin interacting on the atoms Continue reading »

Matter is anything that has mass and takes up space. The term refers to all real objects in the natural world, such as marbles, rocks, ice crystals, oxygen gas, water, hair, and cabbage. The term ‘states of matter’ refers to the four physical forms in which matter can occur: solid, liquid, gaseous, and plasma. Our understanding of the nature of matter is based on certain assumptions about the particles of which matter is composed and Continue reading »

Microscopes are mechanical devices used for viewing objects and materials so minute in size that they are undetectable by the naked eye. The process conducted with such an instrument, called Microscopy, uses the combined schools of optical science and light reflection, controlled and manipulated through lenses, to study small objects at close range.

The basic microscope consists of several complex and interrelated parts: a cylinder t Continue reading »

Microscopes are mechanical devices used for viewing objects and materials so minute in size that they are undetectable by the naked eye. The process conducted with such an instrument, called Microscopy, uses the combined schools of optical science and light reflection, controlled and manipulated through lenses, to study small objects at close range.

The basic microscope consists of several complex and interrelated parts: a cylinder t Continue reading »